Copper rod for melting quartz crucible, electrode device and melting and casting furnace

Abstract

The utility model discloses a copper rod for melting a quartz crucible, an electrode device and a melting and casting furnace, and relates to the technical field of quartz crucible preparation, the copper rod comprises a copper rod body, a liquid inlet pipe and a liquid outlet pipe orifice; an accommodating cavity is limited by the copper rod body; the liquid inlet pipe extends into the containing cavity, the liquid inlet pipe extends from one end of the containing cavity to the other end of the containing cavity and is communicated with the containing cavity, the outer wall of the liquid inlet pipe is provided with a splitter plate, the splitter plate is distributed in the axial direction of the liquid inlet pipe in a spiral shape, and the splitter plate is attached to the inner wall of the containing cavity to form a spiral cooling channel for circulation of a cooling medium; the liquid outlet pipe opening is communicated with the containing cavity of the copper rod body so that the cooling medium obtained after heat exchange can be discharged. According to the copper rod for melting the quartz crucible, the spiral cooling channel is formed in the containing cavity of the copper rod body, the flowing path of a cooling medium can be effectively prolonged, the contact time of the cooling medium and the copper rod body is prolonged, and therefore the heat dissipation efficiency of the copper rod can be improved, and the influence of high temperature on the copper rod during melting of the quartz crucible is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of quartz crucible preparation, and more specifically, to a copper rod, an electrode device, and a melting furnace for melting a quartz crucible. Background Art

[0002] In the process of melting quartz crucibles using the vacuum arc method, the existing copper rod has a hollow structure inside, and the cooling water is simply discharged from bottom to top, which has low heat dissipation efficiency and is not conducive to the long-term use of the copper rod.

[0003] In addition, when connecting the copper rod to the graphite electrode, a conversion connection must be made through three graphite joints, a gasket and two connecting rods. Due to the relatively large number of connecting devices, the cost increases, and the assembly process is cumbersome and prone to failure.

[0004] Therefore, how to improve the heat dissipation efficiency of the copper rod has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a copper rod for melting in a quartz crucible to improve the heat dissipation efficiency of the copper rod.

[0006] Another object of the present application is to provide an electrode device for quartz crucible melting having the above-mentioned copper rod.

[0007] Another object of the present application is to provide a melting furnace for quartz crucible melting having the above-mentioned electrode device.

[0008] To achieve the above objectives, this application provides the following technical solutions:

[0009] A copper rod for melting in a quartz crucible, comprising:

[0010] A copper rod body, wherein the copper rod body defines a receiving cavity;

[0011] a liquid inlet pipe, the liquid inlet pipe extending into the accommodating chamber, the liquid inlet pipe extending from one end of the accommodating chamber to the other end and communicating with the accommodating chamber, the outer wall of the liquid inlet pipe being provided with a diverter plate, the diverter plate being spirally distributed along the axial direction of the liquid inlet pipe, the diverter plate being in contact with the inner wall of the accommodating chamber to form a spiral cooling channel for circulating the cooling medium;

[0012] The liquid outlet is connected to the accommodating cavity of the copper rod body to discharge the cooling medium after heat exchange.

[0013] Optionally, in the above copper rod, the copper rod body has a first end and a second end that are arranged opposite to each other, the first end of the copper rod body is used to connect to the current input end, and the second end of the copper rod body is used to connect to the electrode.

[0014] Optionally, in the above copper rod, a connecting plate is provided at the first end of the copper rod body, and a plurality of connecting holes are provided on the connecting plate, and the connecting holes are used to connect to the connecting terminals of the current input end.

[0015] Optionally, in the above copper rod, the connecting plate is welded to the outer side wall of the copper rod body.

[0016] Optionally, in the above copper rod, each of the connection holes is distributed along an axial direction parallel to the copper rod body.

[0017] Optionally, in the above copper rod, a connecting portion is provided at the second end of the copper rod body, and the outer diameter of the connecting portion is smaller than the outer diameter of the copper rod body, and the connecting portion is used to be threadedly connected to the electrode through a joint.

[0018] Optionally, in the above copper rod, the connecting portion and the copper rod body are an integrated structure.

[0019] Optionally, in the above-mentioned copper rod, the connecting pipe opening of the liquid inlet pipe extends out of the accommodating cavity of the copper rod body, and the connecting pipe opening of the liquid inlet pipe and the liquid outlet pipe opening are on the same end surface of the copper rod body.

[0020] An electrode device for quartz crucible melting comprises an electrode and a copper rod connected to the electrode, wherein the copper rod is the copper rod for quartz crucible melting as described in any one of the above items.

[0021] A melting and casting furnace for melting quartz crucibles comprises the electrode device described above, and the copper rod is fixed in the melting and casting furnace via a clamp.

[0022] The copper rod for melting a quartz crucible provided by the present application extends into the accommodating cavity through a liquid inlet pipe, and extends from one end of the accommodating cavity to the other end, and is connected to the accommodating cavity. At the same time, a diverter plate is provided on the outer wall of the liquid inlet pipe, and the diverter plate is spirally distributed along the axial direction of the liquid inlet pipe, and fits with the inner wall of the accommodating cavity to form a spiral cooling channel for the circulation of the cooling medium, so that the cooling medium can enter the accommodating cavity of the copper rod body through the liquid inlet pipe and flow along the spiral cooling channel for heat exchange, and finally be discharged from the liquid outlet. It can be seen from the above example that the copper rod for melting a quartz crucible provided by the present application can effectively extend the flow path of the cooling medium and increase the contact time between the cooling medium and the copper rod body by forming a spiral cooling channel in the accommodating cavity of the copper rod body, thereby improving the heat dissipation efficiency of the copper rod, so as to avoid the influence of the high temperature of the quartz crucible on the copper rod during melting.

[0023] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with the other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0025] Figure 1 A front view of a copper rod provided in an embodiment of the present application;

[0026] Figure 2 A top view of a copper rod provided in an embodiment of the present application;

[0027] Figure 3 A cross-sectional view of a copper rod provided in an embodiment of the present application;

[0028] Figure 4 This is a schematic structural diagram of the liquid inlet pipe provided in an embodiment of the present application.

[0029] Among them, 100 is the copper rod body, 101 is the accommodating cavity, 102 is the connecting plate, 1021 is the connecting hole, and 103 is the connecting part;

[0030] 200 is the liquid inlet pipe, 201 is the diverter plate, 202 is the spiral cooling channel, and 203 is the connecting pipe port;

[0031] 300 is the liquid outlet, and 301 is the liquid outlet terminal. DETAILED DESCRIPTION

[0032] The core of this application is to provide a copper rod for melting in a quartz crucible to improve the heat dissipation efficiency of the copper rod.

[0033] Another core of the present application is to provide an electrode device for quartz crucible melting having the above-mentioned copper rod.

[0034] Another core of the present application is to provide a melting furnace for quartz crucible melting with the above-mentioned electrode device.

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] The quartz crucible melting furnace is the core equipment in the production of quartz crucibles. The quartz crucible is prepared by the vacuum arc method by loading high-purity quartz sand into a rotating molding mold that can be tilted at any angle, using centrifugal force to shape it, and moving the formed rotating device to the graphite electrode, where the graphite electrode is connected to the copper rod above. Then, the electrode is powered to start the arc, and the vacuum system is started at the same time, causing it to quickly melt into molten quartz in the shape of a crucible. After cooling, it is taken out, and the melting of a quartz crucible is completed.

[0037] Copper rods serve as conductors in the vacuum arc melting process for quartz crucibles. They transmit current to graphite electrodes, generating an arc there and melting the quartz sand. Existing copper rods have a hollow interior, and cooling water is simply discharged from bottom to top, resulting in low heat dissipation efficiency and hindering their long-term use.

[0038] In addition, when connecting the copper rod to the graphite electrode, a conversion connection must be made through three graphite joints, a gasket and two connecting rods. Due to the relatively large number of connecting devices, the cost increases, and the assembly process is cumbersome and prone to failure.

[0039] For this reason, Figure 1 As shown, the embodiment of the present application discloses a copper rod for quartz crucible melting, comprising a copper rod body 100, a liquid inlet pipe 200, and a liquid outlet pipe 300. By forming a spiral cooling channel 202 within the accommodating cavity 101 of the copper rod body 100, the flow path of the cooling medium can be effectively extended, and the contact time between the cooling medium and the copper rod body 100 can be increased, thereby improving the heat dissipation efficiency of the copper rod and preventing the high temperature of the quartz crucible from affecting the copper rod during melting.

[0040] The following will be combined Figures 1 to 4 The copper rod for quartz crucible melting disclosed in the embodiments of the present application is specifically explained and illustrated.

[0041] Among them, such as Figure 3As shown, the copper rod body 100 is a hollow cylindrical structure, and the copper rod body 100 forms a receiving cavity 101. The liquid inlet pipe 200 extends into the receiving cavity 101 and extends from one end of the receiving cavity 101 to the other end. The liquid inlet pipe 200 is connected to the receiving cavity 101 at the end of the liquid inlet pipe 200, so that a cooling medium can flow into the receiving cavity 101. When the quartz crucible is melted, the cooling medium can dissipate heat and cool the copper rod. At the same time, the liquid outlet pipe 300 is connected to the receiving cavity 101 of the copper rod body 100 to discharge the cooling medium after heat exchange, thereby achieving a circulating cooling effect.

[0042] In order to improve the heat dissipation efficiency of the copper rod, such as Figure 3 and Figure 4 As shown, a diverter plate 201 is provided on the outer wall of the liquid inlet pipe 200. The diverter plate 201 is spirally distributed along the axial direction of the liquid inlet pipe 200. The diverter plate 201 is fitted with the inner wall of the accommodating cavity 101 to form a spiral cooling channel 202 for circulation of the cooling medium, so that the cooling medium can enter the accommodating cavity 101 of the copper rod body 100 from the port of the liquid inlet pipe 200 and flow along the spiral cooling channel 202 for heat exchange, and finally be discharged from the liquid outlet 300. Compared with the traditional method of discharging cooling water from bottom to top, the flow path of the cooling medium can be effectively extended, and the contact time of the cooling medium with the copper rod body 100 can be increased, thereby improving the heat dissipation efficiency of the copper rod to avoid the influence of the high temperature of the quartz crucible on the copper rod during melting.

[0043] For ease of understanding, the two ends of the liquid inlet pipe 200 are defined as a first end and a second end, respectively. The first end of the liquid inlet pipe 200 extends into the accommodating chamber 101, and the port at the first end of the liquid inlet pipe 200 communicates with the accommodating chamber 101. The connecting pipe opening 203 at the second end of the liquid inlet pipe 200 extends outside the accommodating chamber 101 to connect to the liquid supply pipe of the liquid supply device. At the same time, the diverter plate 201 extends spirally from the outer wall of the first end of the liquid inlet pipe 200 to the outer wall of the second end of the liquid inlet pipe 200, and the spiral edge of the diverter plate 201 is in contact with the inner wall of the accommodating chamber 101, forming a spiral cooling channel 202 in which the cooling medium flows from the outer wall of the first end of the liquid inlet pipe 200 to the outer wall of the second end of the liquid inlet pipe 200.

[0044] In some embodiments, as Figure 2 and Figure 3As shown, in order to facilitate the connection between the liquid supply pipe and the liquid outlet pipe of the liquid supply device, the connecting pipe opening 203 at the second end of the liquid inlet pipe 200 can be extended from the accommodating cavity 101 of the copper rod body 100. At the same time, the liquid outlet pipe opening 300 is provided with a liquid outlet terminal 301 connected to the liquid outlet pipe, so that the liquid outlet terminal 301 can be connected to the liquid outlet pipe to facilitate the connection between the liquid supply pipe and the liquid outlet pipe of the liquid supply device. In addition, the liquid outlet pipe opening 300 and the connecting pipe opening 203 of the liquid inlet pipe 200 are on the same end surface of the copper rod body 100. While facilitating the connection between the liquid supply pipe and the liquid outlet pipe of the liquid supply device, the cooling path can be maximized, thereby improving heat dissipation efficiency.

[0045] In the above embodiment, the cooling medium may be a liquid cooling medium such as cooling water to achieve a circulating cooling effect of the cooling medium.

[0046] like Figure 1 As shown, the copper rod body 100 has two oppositely disposed ends. For ease of understanding, the two ends of the copper rod body 100 are defined as a first end and a second end, respectively. The first end of the copper rod body 100 is connected to the current input terminal, and the second end of the copper rod body 100 is connected to the electrode. This allows current to be delivered to the electrode through the copper rod, generating an arc at the electrode, thereby melting the quartz sand. It should be noted that the electrode can be a graphite electrode, which allows the electrode to withstand higher temperatures and has good electrical conductivity, effectively conducting current and generating a stable arc.

[0047] like Figures 1 to 3 As shown, in order to facilitate the connection between the first end of the copper rod body 100 and the current input end, in some embodiments, a connecting plate 102 is provided at the first end of the copper rod body 100, and a plurality of connecting holes 1021 are provided on the connecting plate 102, so that the connecting terminals of the current input end can be connected through the connecting holes 1021. Specifically, the number of connecting holes 1021 can be two, three, four, or more, and each connecting hole 1021 is spaced apart along the axis parallel to the copper rod body 100 to avoid mutual interference between the connecting terminals of adjacent current input ends. The connecting plate 102 can be welded to the outer wall of the copper rod body 100 to ensure the reliability of the connection between the connecting plate 102 and the copper rod body 100. It should be noted that in order to ensure conductivity, the connecting plate 102 can be made of copper material, and the connecting terminal of the current input end can be an OT terminal, a DT terminal or an SC terminal. When the connecting terminal of the current input end is connected to the connecting plate 102 of the copper rod body 100, it is only necessary to match the connecting hole of the connecting terminal with the connecting hole 1021 of the connecting plate 102 and fix it with fasteners such as bolts.

[0048] like Figure 1 and Figure 3As shown, to facilitate connection between the second end of the copper rod body 100 and the electrode, in some embodiments, the second end of the copper rod body 100 may be provided with a connecting portion 103. The connecting portion 103 may be integral with the copper rod body 100 or may be a separate structure. Furthermore, the outer diameter of the connecting portion 103 is smaller than the outer diameter of the copper rod body 100, and the connecting portion 103 can be threadedly connected to the electrode via a joint. Specifically, by extending the length of the copper rod body 100, providing an external threaded portion on the connecting portion 103 at the second end of the copper rod body 100, and providing an external threaded portion on the connecting end of the electrode, while also providing internal threads at both ends of the joint, the connecting portion 103 at the second end of the copper rod body 100 and the connecting end of the electrode can be threadedly connected together via the joint. As can be seen from the above embodiments, by extending the length of the copper rod body 100 and providing an external threaded portion on the connecting portion 103 at the second end of the copper rod body 100, a reliable connection with the electrode can be achieved via a single joint, effectively reducing the number of connecting parts, simplifying the installation process, and lowering production costs and the risk of failure. It should be noted that the joint may be a graphite joint, so that the joint can withstand higher temperatures and has good electrical conductivity, can effectively conduct current and enable the electrode to generate a stable arc.

[0049] In the above embodiment, the copper rod body 100 can be made of red copper material, so that the copper rod has good electrical conductivity and thermal conductivity, and can ensure the stability of electrical conductivity under high temperature conditions.

[0050] The embodiment of the present application also discloses an electrode device for quartz crucible melting, including an electrode and a copper rod connected to the electrode, wherein the copper rod is the copper rod for quartz crucible melting disclosed in the above embodiment, and therefore has all the technical effects of the above copper rod, which will not be repeated here.

[0051] The embodiment of the present application also discloses a melting furnace for melting quartz crucibles, including an electrode device. The electrode device is the electrode device disclosed in the above embodiment, and therefore has all the technical effects of the above electrode device, which will not be repeated here.

[0052] Among them, the copper rod can be fixed in the melting furnace by clamps and other fixing parts to prevent the quartz crucible from loosening during the melting process, which may lead to production accidents.

[0053] The terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0054] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A copper rod for melting in a quartz crucible, characterized in that: include: A copper rod body (100), wherein the copper rod body (100) defines a receiving cavity (101); a liquid inlet pipe (200), the liquid inlet pipe (200) extending into the accommodating chamber (101), the liquid inlet pipe (200) extending from one end of the accommodating chamber (101) to the other end and communicating with the accommodating chamber (101), the outer wall of the liquid inlet pipe (200) being provided with a diverter plate (201), the diverter plate (201) being spirally distributed along the axial direction of the liquid inlet pipe (200), the diverter plate (201) being in contact with the inner wall of the accommodating chamber (101) to form a spiral cooling channel (202) for circulating a cooling medium; A liquid outlet pipe (300) is connected to the accommodating cavity (101) of the copper rod body (100) to discharge the cooling medium after heat exchange.

2. The copper rod according to claim 1, characterized in that The copper rod body (100) has a first end and a second end that are arranged opposite to each other, the first end of the copper rod body (100) is used to be connected to a current input end, and the second end of the copper rod body (100) is used to be connected to an electrode.

3. The copper rod according to claim 2, characterized in that A connecting plate (102) is provided at the first end of the copper rod body (100), and a plurality of connecting holes (1021) are provided on the connecting plate (102), and the connecting holes (1021) are used to connect to the connecting terminals of the current input end.

4. The copper rod according to claim 3, characterized in that The connecting plate (102) is welded to the outer side wall of the copper rod body (100).

5. The copper rod according to claim 3, characterized in that The connection holes (1021) are distributed along a direction parallel to the axis of the copper rod body (100).

6. The copper rod according to claim 2, characterized in that The second end of the copper rod body (100) is provided with a connecting portion (103), and the outer diameter of the connecting portion (103) is smaller than the outer diameter of the copper rod body (100), and the connecting portion (103) is used for being threadedly connected to the electrode through a joint.

7. The copper rod according to claim 6, characterized in that The connecting portion (103) and the copper rod body (100) are an integrated structure.

8. The copper rod according to any one of claims 1 to 7, characterized in that The connecting pipe opening (203) of the liquid inlet pipe (200) extends out of the accommodating cavity (101) of the copper rod body (100), and the connecting pipe opening (203) of the liquid inlet pipe (200) and the liquid outlet pipe opening (300) are on the same end surface of the copper rod body (100).

9. An electrode device for quartz crucible melting, characterized in that: The invention comprises an electrode and a copper rod connected to the electrode, wherein the copper rod is the copper rod for melting a quartz crucible according to any one of claims 1 to 8.

10. A melting furnace for quartz crucible melting, characterized in that: The electrode device comprises the electrode device as claimed in claim 9, wherein the copper rod is fixed in the casting furnace by a clamp.

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